Yarn-tube frame



July 24, 11923.

J. G. SODERBERG YARN TUBE FRAME Filed March 6. 1922 til Patented July 24-, i923.

JOHN G. SODERBERG, OF WORCESTER, MASSAGF'IUSETTS.'ASSIGNOR TO CROMPTON 85 KNOWLES LOOM "WORKS, A CGRPOEATXDN G15 IASSAGHUfSETTS.

YARN-TUBE FRAIVIE.

Application filed March 6, 1922.

T 0 all whom it may concern:

Be it known that 1, JOHN G. Sonnnnnno, a citizen of the United States, residing at Worcester, in the county of lVorcester and State of: hlassachusetts, have invented a new and useful Yarn-Tube Frame, of which the following is a specification.

This invention relates to a yarn tube frame of the t ype commonly used in certain carpet and rug looms and particularly in Amninster looms.

It is the object of my invention to improve the construction of such yarn tube frames particularly by providing improved means for assembling and attaching the tubes to the frame and for providing clear entrance for the yarn into the tubes.

With this general object in view, my invention in its preferred form contemplates the use of a metal strip, perferably angular in cross-section, to which the yarn tubes are permanently secured, the strip having a rib or projection formed thereon adjacent the upper ends of the tubes and serving as a gauge in assembling; the tubes.

My invention. further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claim.

r pref rred form of my invention is shown in the drawings in which Fig. 1 is a side elevation of a portion of a tube frame;

Fig. 2 is an end view thereof;

Fig. 3 is an end section taken along the line 3--8 in Fig. 1 and Fig. 4t is an enlarged detail front elevation.

Referring to the drawings, my improved tub frame comprises a bar or support 10 extending transversely of the loom and having end brackets or heads 11 which support the yarn spools 12 and by which also the frames are attached to the pattern chain. A. stiffening member 19f may be provided for strengthening the frame and is shown herein as an angle iron extending beneath the frame.

My improvements relate particularly to the means for attaching the yarn tubes 13 to the bar 10. In the drawings I have shown the tubes 13 as permanently secured by solder or otherwise to the outer face of a metal strip or plate 14. This strip is shown herein as of angular cross-section and is Serial No. 541,278.

provided with a rib or corrugation 15 ex tending longitudinally adjacent the upper ends of the tubes 13.

This rib serves as gauge for the upper ends of the tubes when assembling the same on the strip 142; The rib 15 also protects the upper ends of the tubes and guides the yarn to the tubes in such a way that the yarn cannot engage the sharp upper edges of the tubes.

The bar 10 is preferably recessed along two of its edges to receive the strip 14, as clearly shown in Fig. 3, and the strip may be secured in position by fastening devices 16. also shown in Fig. 3. A single strip 14, may extend the entire length of the bar 10 or the strip may be formed in sections as indicated in 1 whenv used on a tube frame for a relatively wide loom.

This method of assembling the tubes upon the strips 14 before the latter are secured to the bars 10 presents marked advantages over the construction previously in common use. in which the bar 10 was first enclosed within a metal casing to which the yarn tubes were thereafter separately secured.

Furthermore. the provision of the projection rib i5 is of material importance in the use of the device. it auidcs the yarn smoothly over the edges of the tubes and prevents much breakage of yarn.

Having: thus described my invention. it will be evident that changes and modifications can be made therein within the spirit and scope of my invention as set forth in he claim, and I do not wish to be otherwise lin'iited to the details herein disclosed. but what I claim is I A. yarn tube frame comprising a bar having' a lonogitudinallv extended depressed. portion. a sheet metal st 'p secured to said bar in said de ressed no .i on. and a pluralitv of yarn tubes tired to sa d strip, said metal stri having an intosrra longitudinally extended corru ated r b displaced outwardly from. ts surizce adjacent the upper ends of said yarn tubes and protecting the ends hereof. the tube supporting portion of said strip and the longitudinally ribbed portion thereof bein disposed entirely in said de pressed portion of said bar.

In testimony whereof I have hereunto H'UiQtl my signature.

J OHN G. SODERBERG. 

